DE69601440D1 - Continuous process for the production of high-strength propylene-ethylene block copolymers - Google Patents

Continuous process for the production of high-strength propylene-ethylene block copolymers

Info

Publication number
DE69601440D1
DE69601440D1 DE69601440T DE69601440T DE69601440D1 DE 69601440 D1 DE69601440 D1 DE 69601440D1 DE 69601440 T DE69601440 T DE 69601440T DE 69601440 T DE69601440 T DE 69601440T DE 69601440 D1 DE69601440 D1 DE 69601440D1
Authority
DE
Germany
Prior art keywords
propylene
continuous process
ethylene
mfr
ethylene block
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE69601440T
Other languages
German (de)
Other versions
DE69601440T2 (en
Inventor
Takahiro Oka
Shunji Kawazoe
Yasuhiro Yamane
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JNC Corp
Original Assignee
Chisso Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chisso Corp filed Critical Chisso Corp
Application granted granted Critical
Publication of DE69601440D1 publication Critical patent/DE69601440D1/en
Publication of DE69601440T2 publication Critical patent/DE69601440T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F297/00—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F297/00—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer
    • C08F297/06—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the coordination type
    • C08F297/08—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the coordination type polymerising mono-olefins
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F297/00—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer
    • C08F297/06—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the coordination type
    • C08F297/08—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the coordination type polymerising mono-olefins
    • C08F297/083—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the coordination type polymerising mono-olefins the monomers being ethylene or propylene

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Graft Or Block Polymers (AREA)

Abstract

A continuous process for preparation of propylene-ethylene block copolymer suitable for moldings with high rigidity and high impact resistance are provided, which process is a continuous process for preparation of highly rigid propylene-ethylene block copolymers, wherein propylene and ethylene are polymerized in the specified 2 steps with use of a catalyst system comprising (A) a solid catalyst component containing Ti, Mg, halogen and polyvalent carboxylic ester, (B) an organic aluminium compound, as well as (C) an organic silicon compound expressed by the general formula R<4>xR<5>ySi(OR<6>)z (wherein, x+y+z=4), and wherein the ratio between the maximum value and the minimum value of MFR(1)) is <MATH> and the ratio between the average MFR(i) and MFR(ii) in the subsequent polymerization procedure (II) containing ethylene in a relatively large amount which is carried out by adding the glycol type compound is <MATH> The product having less fish eye and high impact resistant value was obtained from the copolymer according to the invention. <IMAGE>
DE69601440T 1995-04-24 1996-04-03 Continuous process for the production of high-strength propylene-ethylene block copolymers Expired - Fee Related DE69601440T2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12306595A JP3355864B2 (en) 1995-04-24 1995-04-24 Continuous production of high-rigidity propylene / ethylene block copolymer

Publications (2)

Publication Number Publication Date
DE69601440D1 true DE69601440D1 (en) 1999-03-11
DE69601440T2 DE69601440T2 (en) 1999-09-16

Family

ID=14851335

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69601440T Expired - Fee Related DE69601440T2 (en) 1995-04-24 1996-04-03 Continuous process for the production of high-strength propylene-ethylene block copolymers

Country Status (6)

Country Link
US (1) US5854355A (en)
EP (1) EP0739917B1 (en)
JP (1) JP3355864B2 (en)
KR (1) KR100414250B1 (en)
AT (1) ATE176252T1 (en)
DE (1) DE69601440T2 (en)

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FI111846B (en) * 1997-06-24 2003-09-30 Borealis Tech Oy Process and apparatus for preparing mixtures of polypropylene
JPH1180298A (en) * 1997-08-29 1999-03-26 Toyota Motor Corp Polypropylene/propylene-ethylene copolymer composition and preparation thereof
US6211300B1 (en) 1998-04-10 2001-04-03 Chisso Corporation Propylene-ethylene block copolymer compositions and processes for production thereof
FI991015A0 (en) 1999-05-04 1999-05-04 Borealis As Process for the preparation of alpha-olefin polymers
DE10025727A1 (en) 2000-05-25 2002-01-03 Basell Polypropylen Gmbh Highly flowable propylene block copolymers
JP2002241452A (en) * 2001-02-21 2002-08-28 Chisso Corp Propylene-ethylene block copolymer composition and molded item obtained by using the same
JP5454107B2 (en) * 2008-12-25 2014-03-26 住友化学株式会社 Propylene-based block copolymer production method
PL2655505T3 (en) 2010-12-20 2019-03-29 Braskem America, Inc. Propylene-based compositions of enhanced appearance and excellent mold flowability
EP3177683B1 (en) * 2014-08-08 2021-02-24 Braskem America, Inc. Composition comprising polypropylene and polyol, and method of making the same

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JPS5869215A (en) * 1981-10-22 1983-04-25 Mitsubishi Chem Ind Ltd Continuous production of propylene/ethylene block copolymer
JPS57174311A (en) * 1981-04-21 1982-10-27 Mitsubishi Chem Ind Ltd Production of propylene/ethylene block copolymer
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JPH072790B2 (en) * 1985-10-31 1995-01-18 チッソ株式会社 Method for producing α-olefin polymer
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Also Published As

Publication number Publication date
DE69601440T2 (en) 1999-09-16
EP0739917A1 (en) 1996-10-30
KR100414250B1 (en) 2004-04-28
JPH08295712A (en) 1996-11-12
US5854355A (en) 1998-12-29
KR960037713A (en) 1996-11-19
EP0739917B1 (en) 1999-01-27
ATE176252T1 (en) 1999-02-15
JP3355864B2 (en) 2002-12-09

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